Public bug reported: just before shutdown is complete, the speakers make a loud crackling noise this only happens when the volume is up, when muted there is no issue
ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18 Uname: Linux 3.2.0-25-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu8 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ross 2011 F.... pulseaudio /dev/snd/controlC0: ross 2011 F.... pulseaudio /dev/snd/pcmC0D0p: ross 2011 F...m pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xdb100000 irq 47' Mixer name : 'IDT 92HD75B3X5' Components : 'HDA:111d7603,103c3659,00100202' Controls : 22 Simple ctrls : 12 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xd3000000 irq 16' Mixer name : 'Nvidia GPU 0a HDMI/DP' Components : 'HDA:10de000a,10de0101,00100100' Controls : 24 Simple ctrls : 4 Date: Mon Jun 4 09:57:29 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) PackageArchitecture: all ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel successful Symptom_Card: Built-in Audio - HDA Intel Symptom_Jack: Speaker, Internal Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: None of the above Title: [HP Pavilion dv6 Notebook PC, IDT 92HD75B3X5, Speaker, Internal] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/17/2010 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.1C dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 3659 dmi.board.vendor: Hewlett-Packard dmi.board.version: 32.25 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnHewlett-Packard:bvrF.1C:bd05/17/2010:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr049D210000241210000020000:rvnHewlett-Packard:rn3659:rvr32.25:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.name: HP Pavilion dv6 Notebook PC dmi.product.version: 049D210000241210000020000 dmi.sys.vendor: Hewlett-Packard ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1008399 Title: when shutting down, speakers make loud crackling noise 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1008399/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs